Solution
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NB-IoT
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LoRa
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LoRaWAN
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model
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HAC-NBh
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HAC-ML
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HAC-MLW
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emission current
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≤250mA
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≤130mA
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≤120mA(22dbm)
≤110mA(17dbm)
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transmit power
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23dBm
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17dBm/50mW
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17dBm/50mW
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average power consumption
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≤20uA
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≤24uA
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≤20uA
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frequency band
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NB-IoT dedicated frequency band
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475 ~ 510MHz
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(433~510MHz or 863~928MHz) compatible with LoRaWAN®
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Handheld data copying
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support
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support
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not support
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Communication distance (line of sight)
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≥20Km
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≥10Km
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≥10Km
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Setting method
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Infrared Settings Upgrade
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FSK settings
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FSK setting or infrared setting upgrade
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Low power real-time
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not real-time
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Real-time meter control
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not real-time
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Data downlink delay
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24h
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12s
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24h
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battery life
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ER26500 up to 8 years
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ER18505 about 13 years
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ER18505 up to 11 years
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base station
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Use NB-IoT operator base station, 50,000 meters per base station
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One concentrator manages 5000 water meters without relay
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A gateway with 5000 meters, the gateway supports wifi Ethernet and 4G
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Operating expenses
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Domestic NB card, 10 yuan for 10 years, reported once a day, the foreign fee depends on the local operator
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One concentrator can be installed with one 4G traffic card
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Using the lorawan operator network, each point is charged annually. Where there is no lorawan network, the self-built network requires the investment of gateways, servers, and equipment management platforms;
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Use scene analysis
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Can be used wherever there is NB-IoT signal coverage
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The equipment is relatively far away, and the valve can be controlled and read in real time, and the downstream table relay can be set
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There is no relay and supplementary copy, relying on LoraWAN network coverage, self-built network needs to increase gateway deployment
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Water meter features
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1、Adopt 10L position measurement, high measurement accuracy.
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2、Timing wake-up, periodic reporting, automatically enters low power consumption state after communication is completed.
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3、Battery undervoltage alarm, measurement abnormality alarm, attack alarm.
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4、The system architecture is simple, and the data can be directly uploaded to the management platform.
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5、The system architecture is simple, and the data can be directly uploaded to the management platform.
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6、Adopt our unique electronic potting process and glue potting equipment to ensure that the waterproof level of the electronic part reaches IP68 and ensure the long-term use of the water meter in any harsh environment.
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7、Anti-strong magnetic interference, the pulse signal is generated by the rotation of the non-magnetic stainless steel sheet, and various data such as cumulative flow, instantaneous flow, and flow alarm can be reported according to the needs of different users.
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Performance parameter
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120mm*110mm*50mm
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level of accuracy
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level 2
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Nominal diameter
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DN15~DN20
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valve
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With valve/without valve
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PN value
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10L/P
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metering mode
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Hall metering
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Turndown ratio
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≥R250
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Maximum allowable working pressure
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1.6MPa
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working environment
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-25℃~55℃
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temperature class
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T30
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data communication
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NB-IoT/LoRa/LoRaWAN
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Working power
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Battery powered, one battery can work continuously for more than 10 years
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Alarm report
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Support instant alarm for abnormal data
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degree of protection
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IP68
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